Sr. Full Stack Developer, TD Securities

United States Digital Space LLC; Toronto; On-site; CAD 126,800 - 164,100; Full time

Job summary

United States Digital Space LLC in Toronto, ON, is seeking a Senior Full-Stack Engineer to lead design and development of modern Capital Markets applications. You will work on React/TypeScript frontend, Node.js services, and Java/Spring Boot backend to deliver improved user experiences and scalable platforms.

The role requires 7+ years of experience, strong collaboration with traders and stakeholders, and hands-on leadership to drive technical design, code reviews, and best practices across

Qualifications

• 7+ years of professional software development experience.
• Strong hands-on experience with React, TypeScript, Node.js.
• Experience building backend services with Java/Spring Boot.
• Experience with relational and document databases (PostgreSQL, MS SQL Server, MongoDB).
• Comfortable collaborating with stakeholders to refine requirements.
• Experience leading development efforts and coordinating teams.
• Excellent communication and collaboration across technical and non-technical teams.

Responsibilities

• Lead design and development of full‑stack applications for Capital Markets.
• Build polished user experiences using React and TypeScript.
• Develop and maintain backend APIs with Node.js and Java/SpringBoot.
• Gather feedback from traders and end users to shape the roadmap.
• Contribute code, reviews, and drive technical design decisions.
• Coordinate work across multiple projects and initiatives.
• Debug production issues and improve platform reliability and security.
• Mentor junior developers and promote engineering best practices.
• Develop deep knowledge of capital markets workflows and value delivery.

Skills

React

TypeScript

Node.js

Java & Spring Boot

CI/CD

Leadership

Communication

Ownership

Education

Degree in CS or related field

Tools

MongoDB

PostgreSQL

MS SQL Server

Express

Spring Boot

REST APIs

WebSockets

Job description

Work Location

Toronto, Ontario, Canada

Hours

37.5 hours per week

Line of Business

Technology Solutions

Pay Details

$126,800 – $164,100 CAD. This role is eligible for a discretionary variable compensation award based on business and individual performance. Compensation may vary based on skills, experience, knowledge, geographic location, and organizational needs.

Job Description

We are seeking a Senior Full‑Stack Engineer to lead the design and development of modern applications across Capital Markets. The focus is on React/Node.js applications, Java services, and delivering improved user experiences and backend functionality.

Role & Responsibilities

• Lead the design and development of modern full‑stack applications across Capital Markets, with a focus on React/Node.js applications and Java services.
• Build polished and highly functional user experiences using React and TypeScript.
• Develop and maintain backend APIs and services using Node.js and Java/SpringBoot.
• Work directly with business stakeholders, traders, and end users to gather feedback, refine requirements, and help shape the product roadmap.
• Actively contribute code, participate in code reviews, and help drive technical design decisions across the team.
• Coordinate development efforts and provide technical leadership across multiple projects and initiatives.
• Debug production issues quickly and effectively, while improving long‑term maintainability and platform stability.
• Ensure platforms are reliable, scalable, secure, and extensible.
• Mentor junior and intermediate developers, while promoting engineering best practices across the team.
• Develop a strong understanding of capital markets workflows and deliver technology solutions that provide meaningful business value.

Our Technology Stack

• Frontend: React, TypeScript, React Router, React Query, Zustand, AgGrid, React Hook Form, Mantine
• Client‑side Interop: Glue42 (interop.io)
• Styling: CSS & SCSS modules
• Build Tools: Vite, Rollup
• Testing: Vitest, Jest
• Design: Figma
• Backend: Node.js, TypeScript, Express, Java (11/17/21), Spring Boot, REST APIs, WebSockets
• Database: MongoDB, PostgreSQL, MS SQL Server
• CI/CD: Teamcity, Azure, GitHub, Google Cloud Platform

Minimum Requirements

• 7+ years of professional software development experience building modern web applications.
• Strong hands‑on experience with React, TypeScript, Node.js, and modern front‑end application architecture.
• Experience building backend services and APIs using Java and Spring Boot.
• Experience working with relational and document databases such as PostgreSQL, MS SQL Server, or MongoDB.
• Comfortable working directly with business stakeholders and end users to refine requirements and shape technical solutions.
• Experience leading development efforts and coordinating work with other developers on a project or initiative.
• Strong communication skills and the ability to collaborate effectively across technical and non‑technical teams.
• Experience supporting and troubleshooting production applications.
• Familiarity with modern engineering practices including code reviews, automated testing, and CI/CD pipelines.
• Degree or diploma in Computer Science, Computer Engineering, or a related field (or equivalent practical experience).
• Strong sense of ownership, attention to detail, and a collaborative mindset.

Preferred Qualifications

• Experience working in Capital Markets or Front Office trading environments.
• Familiarity with trading workflows such as pricing, inventory, positions, P&L, or risk management.
• Experience building applications within investment banking, hedge funds, asset management, or trading firms.
• Experience with desktop interoperability or multi‑application workflow platforms.
• Familiarity with real‑time systems, event‑driven architecture, or messaging technologies.
• A strong product mindset and interest in improving user workflows and platform design.
• Interest in software craftsmanship, continuous learning, or side projects outside of day‑to‑day work.

Our Total Rewards Package

Our Total Rewards package includes base salary, variable compensation, health and wellbeing benefits, savings and retirement programs, paid time off, banking benefits and discounts, career development, rewards and recognition programs.